CNBC's Andrew Ross Sorkin sat down with Lance Armstrong in the first interview since his emotional interview with Oprah Winfrey in 2013. The two discussed his life since his lawsuit with the United States Government, his early investment in Uber and former Uber CEO

What is the best way to save nature – to cordon off areas for parks and open space or to integrate conservation measures on working lands? Recent research makes a case for each of these approaches and has reignited a long-standing debate among scientists

This century will be remembered as the urban century. Our generation will witness the most significant urban growth in human history. By 2050, there will be 2.4 billion more people in cities, a rate of urban…